scotty1024, I owe you something.
A big thank you!
Now I have to learn to use it right. I own a old Casio Graphing Calculator, but this looks completely different.
It's time to remove my hardware calculator [a Casio solar non-graphing calculator] out of my backback.
I found a User's Guide [600 pages, 28 MB] & a Quick Start Guide @
HP's website.